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Side by Side Diff: third_party/WebKit/Source/platform/scheduler/base/thread_load_tracker.h

Issue 2836853003: scheduler: Use PLATFORM_EXPORT instead of BLINK_PLATFORM_EXPORT (Closed)
Patch Set: Rebased Created 3 years, 7 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_LOAD_TRAC KER_H_ 5 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_LOAD_TRAC KER_H_
6 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_LOAD_TRAC KER_H_ 6 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_LOAD_TRAC KER_H_
7 7
8 #include "base/callback.h" 8 #include "base/callback.h"
9 #include "base/macros.h" 9 #include "base/macros.h"
10 #include "base/time/time.h" 10 #include "base/time/time.h"
11 #include "public/platform/WebCommon.h" 11 #include "platform/PlatformExport.h"
12 12
13 namespace blink { 13 namespace blink {
14 namespace scheduler { 14 namespace scheduler {
15 15
16 // This class tracks thread load level, i.e. percentage of wall time spent 16 // This class tracks thread load level, i.e. percentage of wall time spent
17 // running tasks. 17 // running tasks.
18 // In order to avoid bias it reports load level at regular intervals. 18 // In order to avoid bias it reports load level at regular intervals.
19 // Every |reporting_interval_| time units, it reports the average thread load 19 // Every |reporting_interval_| time units, it reports the average thread load
20 // level computed using a sliding window of width |reporting_interval_|. 20 // level computed using a sliding window of width |reporting_interval_|.
21 class BLINK_PLATFORM_EXPORT ThreadLoadTracker { 21 class PLATFORM_EXPORT ThreadLoadTracker {
22 public: 22 public:
23 // Callback is called with (current_time, load_level) parameters. 23 // Callback is called with (current_time, load_level) parameters.
24 using Callback = base::Callback<void(base::TimeTicks, double)>; 24 using Callback = base::Callback<void(base::TimeTicks, double)>;
25 25
26 ThreadLoadTracker(base::TimeTicks now, 26 ThreadLoadTracker(base::TimeTicks now,
27 const Callback& callback, 27 const Callback& callback,
28 base::TimeDelta reporting_interval, 28 base::TimeDelta reporting_interval,
29 base::TimeDelta waiting_period); 29 base::TimeDelta waiting_period);
30 ~ThreadLoadTracker(); 30 ~ThreadLoadTracker();
31 31
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
69 69
70 Callback callback_; 70 Callback callback_;
71 71
72 DISALLOW_COPY_AND_ASSIGN(ThreadLoadTracker); 72 DISALLOW_COPY_AND_ASSIGN(ThreadLoadTracker);
73 }; 73 };
74 74
75 } // namespace scheduler 75 } // namespace scheduler
76 } // namespace blink 76 } // namespace blink
77 77
78 #endif // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_LOAD_T RACKER_H_ 78 #endif // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_LOAD_T RACKER_H_
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